to be honest, I only use Optimum Nutrition's vanilla whey in baking/recipes. For PWO I use Scivation's chocolate whey. It's been on special at dpsnutrition for a while, under $60 for 10lb. That's ultra-cheap. Also its amino acid profile is outstanding (in some cases beats ON's 5:1)

clame for AA profile. I'm not a rep for them or anything, I just like their stuff bc it works well.